Meebo

See: Meebo.com

Meebo is a browser based chat that mimics other popular chats like

MSN,  Yahoo , aim  and myspace

This is a fantastic site if you are away from your own computer and need to use a chat that normally runs on your home computer on a dedicated application like Messenger.

Visit  Meebo.com, Pick the chat you want to use and sign on with your  normal login and password.

Meebo gives you Chat windows just like your Messenger app does back home.